/*
   * Copyright (c) 2004 Mellanox Technologies Ltd.  All rights reserved.
   * Copyright (c) 2004 Infinicon Corporation.  All rights reserved.
   * Copyright (c) 2004 Intel Corporation.  All rights reserved.
   * Copyright (c) 2004 Topspin Corporation.  All rights reserved.
   * Copyright (c) 2004 Voltaire Corporation.  All rights reserved.
   *
   * This software is available to you under a choice of one of two
   * licenses.  You may choose to be licensed under the terms of the GNU
   * General Public License (GPL) Version 2, available from the file
   * COPYING in the main directory of this source tree, or the
   * OpenIB.org BSD license below:
   *
   *     Redistribution and use in source and binary forms, with or
   *     without modification, are permitted provided that the following
   *     conditions are met:
   *
   *      - Redistributions of source code must retain the above
   *        copyright notice, this list of conditions and the following
   *        disclaimer.
   *
   *      - Redistributions in binary form must reproduce the above
   *        copyright notice, this list of conditions and the following
   *        disclaimer in the documentation and/or other materials
   *        provided with the distribution.
   *
   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
   * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
   * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
   * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
   * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
   * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
   * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
   * SOFTWARE.
   */
  
  #if !defined(IB_SMI_H)
  #define IB_SMI_H
  
  #include <rdma/ib_mad.h>
  
  #define IB_SMP_DATA_SIZE			64
  #define IB_SMP_MAX_PATH_HOPS			64
  
  struct ib_smp {
  	u8	base_version;
  	u8	mgmt_class;
  	u8	class_version;
  	u8	method;
  	__be16	status;
  	u8	hop_ptr;
  	u8	hop_cnt;
  	__be64	tid;
  	__be16	attr_id;
  	__be16	resv;
  	__be32	attr_mod;
  	__be64	mkey;
  	__be16	dr_slid;
  	__be16	dr_dlid;
  	u8	reserved[28];
  	u8	data[IB_SMP_DATA_SIZE];
  	u8	initial_path[IB_SMP_MAX_PATH_HOPS];
  	u8	return_path[IB_SMP_MAX_PATH_HOPS];
  } __attribute__ ((packed));
  
  #define IB_SMP_DIRECTION			cpu_to_be16(0x8000)
  
  /* Subnet management attributes */
  #define IB_SMP_ATTR_NOTICE			cpu_to_be16(0x0002)
  #define IB_SMP_ATTR_NODE_DESC			cpu_to_be16(0x0010)
  #define IB_SMP_ATTR_NODE_INFO			cpu_to_be16(0x0011)
  #define IB_SMP_ATTR_SWITCH_INFO			cpu_to_be16(0x0012)
  #define IB_SMP_ATTR_GUID_INFO			cpu_to_be16(0x0014)
  #define IB_SMP_ATTR_PORT_INFO			cpu_to_be16(0x0015)
  #define IB_SMP_ATTR_PKEY_TABLE			cpu_to_be16(0x0016)
  #define IB_SMP_ATTR_SL_TO_VL_TABLE		cpu_to_be16(0x0017)
  #define IB_SMP_ATTR_VL_ARB_TABLE		cpu_to_be16(0x0018)
  #define IB_SMP_ATTR_LINEAR_FORWARD_TABLE	cpu_to_be16(0x0019)
  #define IB_SMP_ATTR_RANDOM_FORWARD_TABLE	cpu_to_be16(0x001A)
  #define IB_SMP_ATTR_MCAST_FORWARD_TABLE		cpu_to_be16(0x001B)
  #define IB_SMP_ATTR_SM_INFO			cpu_to_be16(0x0020)
  #define IB_SMP_ATTR_VENDOR_DIAG			cpu_to_be16(0x0030)
  #define IB_SMP_ATTR_LED_INFO			cpu_to_be16(0x0031)
  #define IB_SMP_ATTR_VENDOR_MASK			cpu_to_be16(0xFF00)
  
  struct ib_port_info {
  	__be64 mkey;
  	__be64 gid_prefix;
  	__be16 lid;
  	__be16 sm_lid;
  	__be32 cap_mask;
  	__be16 diag_code;
  	__be16 mkey_lease_period;
  	u8 local_port_num;
  	u8 link_width_enabled;
  	u8 link_width_supported;
  	u8 link_width_active;
  	u8 linkspeed_portstate;			/* 4 bits, 4 bits */
  	u8 portphysstate_linkdown;		/* 4 bits, 4 bits */
  	u8 mkeyprot_resv_lmc;			/* 2 bits, 3, 3 */
  	u8 linkspeedactive_enabled;		/* 4 bits, 4 bits */
  	u8 neighbormtu_mastersmsl;		/* 4 bits, 4 bits */
  	u8 vlcap_inittype;			/* 4 bits, 4 bits */
  	u8 vl_high_limit;
  	u8 vl_arb_high_cap;
  	u8 vl_arb_low_cap;
  	u8 inittypereply_mtucap;		/* 4 bits, 4 bits */
  	u8 vlstallcnt_hoqlife;			/* 3 bits, 5 bits */
  	u8 operationalvl_pei_peo_fpi_fpo;	/* 4 bits, 1, 1, 1, 1 */
  	__be16 mkey_violations;
  	__be16 pkey_violations;
  	__be16 qkey_violations;
  	u8 guid_cap;
  	u8 clientrereg_resv_subnetto;		/* 1 bit, 2 bits, 5 */
  	u8 resv_resptimevalue;			/* 3 bits, 5 bits */
  	u8 localphyerrors_overrunerrors;	/* 4 bits, 4 bits */
  	__be16 max_credit_hint;
  	u8 resv;
  	u8 link_roundtrip_latency[3];
  };
  
  static inline u8
  ib_get_smp_direction(struct ib_smp *smp)
  {
  	return ((smp->status & IB_SMP_DIRECTION) == IB_SMP_DIRECTION);
  }
  
  #endif /* IB_SMI_H */